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Compressor housing for supercharger and manufacturing method thereof

A technology for compressor housings and manufacturing methods, applied to machines/engines, parts of pumping devices for elastic fluids, mechanical equipment, etc., can solve problems such as damage to impellers, prevent the decline in compression efficiency, and maintain force effect

Inactive Publication Date: 2017-09-26
OTICS CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the clearance is reduced, the impeller may be damaged if the blades of the impeller come into contact with the shroud surface of the compressor casing due to, for example, vibration and / or runout of the impeller rotating shaft.

Method used

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  • Compressor housing for supercharger and manufacturing method thereof
  • Compressor housing for supercharger and manufacturing method thereof
  • Compressor housing for supercharger and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] use Figure 1 to Figure 9 The compressor casing for the supercharger of this example will be described.

[0054] Such as figure 1 As shown, the compressor housing 1 for a supercharger of this example (hereinafter also referred to as “compressor housing 1 ”) includes a housing main body 20 , a slide member 30 , and a ring-shaped member 40 .

[0055] The casing main body 20 is configured to accommodate the impeller 10 , and has a concave inner peripheral recess 21 formed on an annular inner peripheral surface along the outer periphery 10 a of the impeller 10 .

[0056] The sliding member 30 is formed in an annular shape and is disposed in the inner peripheral recess 21 , and its inner peripheral surface forms a shroud surface 31 facing the impeller 10 .

[0057] The ring member 40 is formed in a ring shape along the inner peripheral recess 21 of the casing body 20 , and is press-fitted into the inner peripheral recess 21 along the axial direction X of the impeller 10 . ...

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Abstract

The objective of the present invention is to provide a compressor housing for a supercharger which is capable of preventing the deterioration of a compression efficiency and maintaining the holding force for a sliding member, and is advantageous in costs, and a manufacturing method thereof. The compressor housing (1) for a supercharger is provided with a housing main body (20) that houses therein an impeller (10), and an annular sliding member (30) that forms a shroud surface (31). The sliding member (30) is provided with a flange (32) protruding radially outward, and is disposed in an inner circumferential recess (21) formed in the inner circumference surface of the housing main body (20). In addition, a ring-shaped member (40) formed in a ring shape along the inner circumferential recess (21) is press-fitted into the inner circumferential recess (21), and thus the flange (32) is held and fastened between a press-fit-direction front side face (41) of the ring-shaped member (40) and a recess opposing surface (213) of the inner circumferential recess (21) opposing the press-fit-direction front side face (41).

Description

technical field [0001] The present invention relates to a compressor housing for a supercharger and a method of manufacturing the same. Background technique [0002] A compressor (English: compressor) used in a supercharger such as a turbocharger of an automobile has a compressor housing configured to accommodate an impeller, and has an air inlet for sucking air toward the impeller; A volute chamber (Japanese: スクロール室) which is formed in the circumferential direction on the outer peripheral side of the impeller and which introduces air discharged from the impeller; and a shroud (English: Shroud) surface which opposes the impeller. [0003] In the compressor configured as described above, the compression efficiency of the compressor can be improved by reducing the gap between the blades of the impeller and the shroud surface of the compressor housing as much as possible. [0004] However, if the clearance is reduced, the impeller may be damaged if the blades of the impeller c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F02B39/00F04D29/62
CPCF04D29/023F04D29/162F04D29/4206F04D29/624F05D2220/40F02B39/00F04D29/284F04D29/62
Inventor 樱井雅英米泽幸一
Owner OTICS CORP
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